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Exploring the Impact of Cut Table Width and Depth on Diamond Brilliance and Value

Exploring the Impact of Cut Table Width and Depth on Diamond Brilliance and Value

Exploring the Impact of Cut Table Width and Depth on Diamond Brilliance and Value
Exploring the Impact of Cut Table Width and Depth on Diamond Brilliance and Value

When you are looking into the range of diamonds offered by a diamond online shop, many people assume that investment value and quality comes down to features such as colour: pink (argyle diamonds), blue, yellow, or white, or the original of the diamond as natural diamond over lab grown diamonds, however when you are looking to buy diamonds that will retain a high resale value, what really matters is how the diamond is cut.

A well cut common one carat black diamond could end up being worth more than a badly cut 1 carat fancy yellow diamond simply due to the fact that the black diamond’s capacity to reflect light that strikes each pavilion is much higher. In contrast the yellow diamond which is supposedly to be worth more due to its rarity allows light to escape through other sections of the diamond without reflecting the light back to the crown or table.

In this article, we will look beyond the famous Four C diamond classifications, the discussion will focus on a diamond’s table, diamonds width and the diamond depth which are critical towards the brilliance of a diamond that makes the average diamond engagement ring or diamond jewellery as valuable and as beautiful as they are.

Diamond Table

Exploring the Impact of Cut Table Width and Depth on Diamond Brilliance and Value

How a diamond table’s percentage is determined by taking the width of the diamond table as presented in the image above by the girdle diameter or the entire width of the diamond. As an example, if the width of the diamond is 6mm and the table facet is 3mm wide, the percentage of the table 50%.

In this case, a table that is 50% may be deemed as ‘too large’ that could result in the diamond not reflecting enough light via the crown angles and facets if the depth of the diamond is too shallow. What must be noted at this point is the fact that the ideal percentage of the table is actually dependent on the shape of the diamond itself.

Diamond Width

The width of a diamond is the measurement of the diamond’s girdle from one end to the direct opposite other end (widest point). The width comes into play within the scope of a diamond’s brilliance based on the ratio between length and width ratio.

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This is measured by simply dividing the length by the width. The ideal ratio is again dependent on the shape of the diamond meaning that a rectangular shaped diamond will possess a larger ratio and an oval shaped diamond will possess smaller ratio. 

Diamond Depth

The percentage of the diamond’s depth expressly refers to the height of a given diamond that measures from the culet of the diamond as presented above all the way to the top of the diamond usually in millimetres. The percentage is obtained simply by taking the depth measurement and dividing it with the width measurement which will present the depth percentage of the diamond.

For example, if a diamond owns a depth of 4mm and the width is 5 mm the depth percentage will be 80%. Depths play a significant role in light reflection based on the fact that lower depth percentages (below 65 %) will cause the diamond appear due to the higher width and at the same time give the diamond a much darker appearance as light is not reflected that much.

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